package cn.wolfcode.luowowo.comment.service.impl;

import cn.wolfcode.luowowo.comment.domain.TravelComment;
import cn.wolfcode.luowowo.comment.query.TravelCommentQuery;
import cn.wolfcode.luowowo.comment.repository.ITravelCommentRepository;
import cn.wolfcode.luowowo.comment.service.ITravelCommentService;
import com.alibaba.dubbo.config.annotation.Service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.util.StringUtils;

import java.util.Date;
import java.util.List;

@Service
public class TravelCommentServiceImpl implements ITravelCommentService {
    @Autowired
    private ITravelCommentRepository repository;
    @Autowired
    private MongoTemplate mongoTemplate;

    @Override
    public TravelComment save(TravelComment comment) {
        if(StringUtils.hasLength(comment.getId())){
            comment.setCreateTime(new Date());
        }
//        必须处理引用评论。
        String refId = comment.getRefComment().getId();
        if(StringUtils.hasLength(refId)){
            TravelComment ref = repository.findById(refId).get();
            comment.setRefComment(ref);
        }
        repository.save(comment);
        return comment;
    }

    @Override
    public Page query(TravelCommentQuery qo) {
        Query query = new Query();
        if(qo.getTravelId()!=-1){
            query.addCriteria(Criteria.where("TravelId").is(qo.getTravelId()));
        }
        long total = mongoTemplate.count(query, TravelComment.class);
        if(total==0){
            return Page.empty();
        }
//        分页
        Pageable pageable= PageRequest.of(qo.getCurrentPage()-1,qo.getPageSize(), Sort.Direction.ASC,"createTime");
        query.with(pageable);
        List<TravelComment> list = mongoTemplate.find(query, TravelComment.class);

        return new PageImpl(list,pageable,total);
    }

    @Override
    public Long getCount(Long travelId) {
        Query query = new Query();
        if(travelId!=null){
            query.addCriteria(Criteria.where("TravelId").is(travelId));
        }
        long total = mongoTemplate.count(query, TravelComment.class);
        return total;
    }


}